I know what the response is going to be is to change alt but the problem iam having at the moment when iam above fl 240 to fl 350 and winds are between 40 to 90 in any direction my speed tape goes eractic goes up and down like a yo yo which mean genrally i get overspeed flying an md 11

Do you have a registered version of FSUIPC? If so try adjusting the wind smoothing option

Do you have a registered version of FSUIPC? If so try adjusting the wind smoothing option

hi thx for the reply yes i have the fsucip bu its not regristed was only using i for another third party add on so i cud fly and put on my hours on etc but since i removed it i dont get those over 90 miles of wind now at fl340 which is gudanother question in the baro knob there is qnh i kow wat that is but wat does qfe mean on he md11

I've also got the same problem - have an unregistered version of fusipc. I use ASV6.5 -do we need to pay for the reg version to resolve this problem?FSX, Vista 64Mike

From what I read on a post at HiFi sim forum - it's a bit of an upset between pmdg planes and hifi, both blame the other and hifi has apparently talked to pmdg about how to 'fix' the problem of S turns and altitude shifts and wind effects but no joy.That is not my opinion, it's only what I read I hasten to add.I use ASA for fs9 pmdg and have no problems, different story using fsx though. I use fscuip4 with fsx and it does help considerably.That said I don't know about upper weather but to my mind winds do not shift around at 180 degrees in normal conditions and certainly don't vary by +/- 90 knots in the course of a few seconds.Think it all boils down to the FSX weather engine being rubbish at the end of the day.John Ellison

I've also got the same problem - have an unregistered version of fusipc. I use ASV6.5 -do we need to pay for the reg version to resolve this problem?FSX, Vista 64Mike

FSUIPC doesn't cost much. It is a very useful program. Besides adjusting weather, you can assign keys, buttons and axis's for FS that you can't do with FS by itself. If you have addon hardware such as a yoke, throttles or pedals, it makes calibrating and assigning buttons so much easier. You can even make aircraft specific assignments so when you switch to a prop, for example, the throttles can already be set up. I think it's a must have program myself.RegardsRichie

and it will resolve the speed spyke issue in FSX? Until I saw this thread I did not think anything of it. I also have the LevelD in FSX and dont have this issue with it and asv6.5.Thanks for the help!Mike

I had the same problem so I bought a registered version of fusipc, played with the smoothing settings (for like 1 minute) and it's pretty much fixed. No more sudden overspeed or stall speeds.

Thanks guys - will buy it and give out a report once its tweaked.Mike

I had the same problems when I first purchased the PMDG 747. I then purchased the registered version of FSUIPC and the problems went away. Rick